<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>

<form action="login ">
用户名：<input type="text" name="username">
密码：<input type="text" name="password">

<input type="submit" name="login">

</form>

</body>
</html>